VttLocationAttribute Class Reference

VTT subtitle location attribute class. More...

#include "AliVttSubtitleView.h"

Inheritance diagram for VttLocationAttribute:

Class Methods
(int)	+ ALIGN_CENTER
(int)	+ ALIGN_END
(int)	+ ALIGN_START
	已废弃：返回值(1/2/3)与 mAlignment 实际存储值不一致，请改用 AVPVttAlign 枚举。 Deprecated: return values (1/2/3) do not match what mAlignment actually stores.

Properties
AVPVttAlign	align
	文本对齐方式（native 忠实值），取值见 AVPVttAlign（与 native webvtt_align_e 一致）；业务方请优先读此字段 Text alignment (native-faithful), see AVPVttAlign (identical to native webvtt_align_e); prefer this over mAlignment
int	mAlignment
	已废弃：请改用 align（AVPVttAlign）。此字段为 int，取值不保证与 native 一致，保留仅为兼容旧接入方。 Deprecated: use align (AVPVttAlign) instead.
double	mAngle
	旋转角度，单位为度 Rotation angle in degrees
int	marginL
	左边距，单位为像素 Left margin in pixels
int	marginR
	右边距，单位为像素 Right margin in pixels
int	marginV
	垂直边距，单位为像素 Vertical margin in pixels
double	mScaleX
	水平缩放比例，1.0为原始大小 Horizontal scale ratio, 1.0 is original size
double	mScaleY
	垂直缩放比例，1.0为原始大小 Vertical scale ratio, 1.0 is original size
int	mSizeType
	cue size 数值的类型：-1=未设置, 0=百分比, 1=px, 2=行号（对应 webvtt_value_type_e） Type of cue size value: -1=invalid, 0=percentage, 1=px, 2=line number (webvtt_value_type_e)
double	mSizeValue
	cue size 的数值（如 size:18% 则为 18）。仅透传解析结果，SDK 渲染不使用；未设置时为 0 Numeric value of cue size (e.g.
double	posX
	X坐标位置，单位为像素 X coordinate position in pixels.
double	posY
	Y坐标位置，单位为像素 Y coordinate position in pixels.

Detailed Description

VTT subtitle location attribute class.

Encapsulates position, alignment, margin, and transformation information of subtitles on screen. Supports position control features of the WebVTT standard.

Method Documentation

ALIGN_CENTER

+ (int) ALIGN_CENTER

ALIGN_END

+ (int) ALIGN_END

ALIGN_START

+ (int) ALIGN_START

已废弃：返回值(1/2/3)与 mAlignment 实际存储值不一致，请改用 AVPVttAlign 枚举。 Deprecated: return values (1/2/3) do not match what mAlignment actually stores.

Use AVPVttAlign.

Property Documentation

align

- (AVPVttAlign) align

readwritenonatomicassign

文本对齐方式（native 忠实值），取值见 AVPVttAlign（与 native webvtt_align_e 一致）；业务方请优先读此字段 Text alignment (native-faithful), see AVPVttAlign (identical to native webvtt_align_e); prefer this over mAlignment

mAlignment

- (int) mAlignment

readwritenonatomicassign

已废弃：请改用 align（AVPVttAlign）。此字段为 int，取值不保证与 native 一致，保留仅为兼容旧接入方。 Deprecated: use align (AVPVttAlign) instead.

This int field is not guaranteed to match native values; kept only for backward compatibility.

mAngle

- (double) mAngle

readwritenonatomicassign

旋转角度，单位为度 Rotation angle in degrees

marginL

- (int) marginL

readwritenonatomicassign

左边距，单位为像素 Left margin in pixels

marginR

- (int) marginR

readwritenonatomicassign

右边距，单位为像素 Right margin in pixels

marginV

- (int) marginV

readwritenonatomicassign

垂直边距，单位为像素 Vertical margin in pixels

mScaleX

- (double) mScaleX

readwritenonatomicassign

水平缩放比例，1.0为原始大小 Horizontal scale ratio, 1.0 is original size

mScaleY

- (double) mScaleY

readwritenonatomicassign

垂直缩放比例，1.0为原始大小 Vertical scale ratio, 1.0 is original size

mSizeType

- (int) mSizeType

readwritenonatomicassign

cue size 数值的类型：-1=未设置, 0=百分比, 1=px, 2=行号（对应 webvtt_value_type_e） Type of cue size value: -1=invalid, 0=percentage, 1=px, 2=line number (webvtt_value_type_e)

mSizeValue

- (double) mSizeValue

readwritenonatomicassign

cue size 的数值（如 size:18% 则为 18）。仅透传解析结果，SDK 渲染不使用；未设置时为 0 Numeric value of cue size (e.g.

18 for size:18%). Pass-through only, not used by rendering; 0 when unset

posX

- (double) posX

readwritenonatomicassign

X坐标位置，单位为像素 X coordinate position in pixels.

posY

- (double) posY

readwritenonatomicassign

Y坐标位置，单位为像素 Y coordinate position in pixels.

---

The documentation for this class was generated from the following file:

• AliVttSubtitleView.h